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Finding the Fourth Proportional to 347,404.97, 479,038.14 and 226,321.72

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Solution

The fourth proportional to 347,404.97, 479,038.14 and 226,321.72 is: 312,075.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,404.97 : 479,038.14 = 226,321.72 : x
  2. Step 2: Convert to fraction form
    347,404.97/479,038.14 = 226,321.72/x
  3. Step 3: Cross multiply
    347,404.97x = 479,038.14 × 226,321.72
  4. Step 4: Simplify right side
    347,404.97x = 108,416,734,592.81
  5. Step 5: Solve for x
    x = 108,416,734,592.81/347,404.97
  6. Step 6: Final answer
    x = 312,075.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.